brake line size

Discussion in 'The whoa and the sway.' started by nekkidhillbilly, Mar 8, 2023.

  1. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    got a line leaking on my centurion. just going to swap it all to stainless. are they all 1/4 inch line?
     
  2. Max Damage

    Max Damage I'm working on it!

    My kids tell me my memory is crap, but my memory says 3/16"
     
    john.schaefer77 likes this.
  3. john.schaefer77

    john.schaefer77 Well-Known Member

    Depends where. Axle think is different.
     
  4. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    its in the back so im not sure. going to replace them all anyway so 3/16 is what i need?
     
  5. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Most are 3/16. Not sure of what 1/4 is there. Maybe front section from master to distribution block for front brakes.
     
  6. woody1640

    woody1640 Well-Known Member

    Most cars have 1/4" line from the distribution block to the rear axles, then 3/16" from the T to the wheel cylinders.

    Keith
     
  7. CJay

    CJay Supercar owner Staff Member

    Keith gets the gold star
     
  8. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    I just fixed a brake line on a 72 Centurion going to the back...and I could have sworn it was 3/16
     
    Lucy Fair likes this.
  9. CJay

    CJay Supercar owner Staff Member

    Should of been 1/4". Although the 63 cat I did with the single pot master and 4 wheel drums was 3/16" going back to the rear
     
    Lucy Fair likes this.
  10. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    I might be wrong...I've slept since then. That car was a bit rough, so it might have had some work done to it previously.
     
  11. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    ill have to look. its up on the jack stands right now.
     
  12. Lucy Fair

    Lucy Fair Nailheadlova

    My 66 Riv has all 3/16 original lines, except short one fro MC to block. This one is 1/4. Drums all around and single MC.
     
  13. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    i ordered a roll of stainless 3/16
     
  14. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    while im at are the trans coolants lines 3/8? they look bigger
     
  15. Max Damage

    Max Damage I'm working on it!

    Make sure you have a high quality flaring tool. I wasted a LOT of time and materials struggling with a cheap autoparts store flaring tool, before I bit the bullet and bought a better (Rigid) flaring tool.

    I think the trans coolers in my car ('68 Special) were also 3/16"?
     
  16. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner


    they are def bigger than the 3/16 line i got in. i got a cheap one but its not give me any issues.
     
    Max Damage likes this.

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